I have been trying to set up our machine (Niigata HN50B with a Fanuc 15MA) to accept DNC and I keeep getting error SR824 - Buffer Overload on the control. The computer has a DB 9 and the control has the usual DB25. I have re-made cables twice, following the advice of the machine tool guy's and the software guy's - to no avail. Is there another parameter that I chould change? Is the machine not dumping it's memory? Any suggestions besides a large hammer?